9984384078 has 32 divisors (see below), whose sum is σ = 20093909760. Its totient is φ = 3307296960.

The previous prime is 9984384031. The next prime is 9984384089. The reversal of 9984384078 is 8704834899.

9984384078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2550943 + ... + 2554853.

It is an arithmetic number, because the mean of its divisors is an integer number (627934680).

Almost surely, 2^9984384078 is an apocalyptic number.

9984384078 is an abundant number, since it is smaller than the sum of its proper divisors (10109525682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9984384078 is a wasteful number, since it uses less digits than its factorization.

9984384078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The square root of 9984384078 is about 99921.8898840489. The cubic root of 9984384078 is about 2153.3126563069.

It can be divided in two parts, 99843 and 84078, that added together give a triangular number (183921 = T₆₀₆).

The spelling of 9984384078 in words is "nine billion, nine hundred eighty-four million, three hundred eighty-four thousand, seventy-eight".